Reinforced concrete construction



W. C- DAVIS. REINFORCED CONCRETE CONSTRUCTION.

1,348,483. EPPLICATION FILED SEPT. 27 19!]. Patented Aug. 3, y.

I R a UNITED STATES PATENT OFFICE.

REINFORCED CONCRETE CONSTRUCTION.

Specification of Letters Patent.

Application filed September 27, 1917. Serial No. 193,493.

To all whom it ma concern:

Be it known t at I, WILLIAM CHARLES DAVIS, of Victoria Parade, in the city of Melbourne, county of Bourke, State of Victoria, Commonwealth of Australia, a subject of the King of Great Britain and he land, have invented certain new and useful Reinforced Concrete Construction, of which the following is a specification.

My present invention relates to an improved method of, and means for reinforcing plain, ornamental, rough cast or rus tic concrete work for parapets, balconies, verandas, baluster railings, pergolas, rustic bridges, fancy fences and other like structures, wherein either straight, angular, curved, or circular concrete shapes or designs are required.

One feature of my said invention consists in the combined use of skeleton reinforcements made partly of flexible material, such as wire netting, and also partly of a rigid metal framework, such as tubes, or solid rods with structural supports or connections, positioned so as to render such concrete desi ns stable and inexpensive in construction.

ut in order that my said invention may be better understood I will now refer to the accompanying sheet of drawings in which Figure 1 represents an elevation of a finished concrete post structure having at either side thereof a different design of panel, and also of the foundation. Fig. 2 is an elevation showing exposed to view the combined use of my flexible and rigid reinforcing means employed in the construction of the fence post illustrated at Fig.1. The same view also shows, in dotted lines, the method adopted by me for connecting the ends of the rails with the central reinforcing tube or rod of said post. Fig. 3 shows a section of a skeleton framework comprised of tubes, or rods with wires, forming a part of the means employed for reinforcing a varied form or design of rail or panel. Fig. 4 is a plan of a portion of a concrete panel, showing one part completely constructed and another partly molded into shape; being only partly covered b the flexible reinforcing means employe Fig. 5 is a plan of a skeleton frame of another desi suitable for several kinds of structures. ig. 6 represents a part elevation of the reinforcing framework shown at Fig. 5, concreted to form a panel. Fig. 7 is a half end sectional view of a reinforced part of panel in a partly molded state. Fi 8 is an end sectional view showing ig. 7 completely formed and reinforced, according to my method herein described. Figs. 9and 10 are partial perspective views respectively of the arrangement of horizontal and distance rods or structural connections of my reinforcing means. Fig. 11 is an elevation of a varied design of fence and post, having only vertical and horizontal members,

Like letters of reference refer to like parts wherever they occur in the several views. In carrying out my said invention, where It is desired to construct a reinforced panel I purpose using a framework comprised of two metal tubes or rods (A) and B) with which are arran ed distance rods EC) (C havin their on s inserted into erforations a 1)3 provided in said tubes and (B), as clearly shown at Fig. 10, in order to keep the latter equidistant apart and parallel with each other.

In lieu of said distance rods (C) (0 shown at Figs. 3, 4 and 10 the forked rods (E), as at Fig. 9, may be substituted.

In assembling the tubes and rods of said framework of say, a reinforced panel I prefer to first place a distance rod (C in a midlength position between the two ends of said tubes (A) and (B), Fig. 4:, following with the arran ement of the other distance rods in a position either side of said midlength rod (0), to form the design as illustrated at Fig. 4. i

The several parts of said reinforcing framework as shown at Figs. 3, 4, and 5 are securely fastened and held together in their respective positions by means of wire stays (f), which have their ends made fast as shown at Fi 3.

Wire bindings (G) and lashings may also be used around said tubes and distance rods as at Figs. 4 and 5.

For the molding of a reinforced panel, I purpose placing the skeleton framework, above described, upon level ground or a fiat layer of damp sand; so that its size and shape can be marked around said tubes, rods, and stays, to shown design. The skeleton framework is then removed and a gouge shaped tool may be employed for scooping out what I term a molding bed, as at .(H Fi s. 7 and 8. Where a rough cast design 0 panel is desired, I sprinkle Into said Patented Aug. 3, 1920.

molding bed small stones, marble, or other such like screenings, and afterward. place therein about one inch of concrete. I then day a strip of wire netting (I) of desired length in mold, fill up some with concrete to the extent shown at Fig. 7; then replace, firmly bed, and cover the skeleton framework with concrete, as at Fig. 4. The concreting now proceeds until the desired shape is obtained when the remaining part of wire netting is brought over into position as at Fig. 8. Said wire netting is then covered with one inch or thereabout of concrete, which is finall finished off with screenings as above described so as to correspond with the underside of panel, as shown at Fig. 8.

The use of triangular and circular shaped patterns (J) and (K), consisting of wire netting, will serve during the reinforcing process to provide openings in the design; such patterns being removed prior to set ting of concrete.

In the reinforcing of fence )osts as at li 1 and 2, of my drawings provide a cyfiiidrically shaped wire netting frame (L) erected in a vertical position with a panel situated at either side, one of said panels being shown supported at For instance, where a fence post of twelve inches in diameter is required, I take the piece of wire nettin (L) of sa. about one half inch mesh, an three feet in length, and fasten the two rough edges to 'ether so as to form the cylindrical shape aforesaid. A tube or rod (N) with or without metal extensions (0) and (P) is then centrally placed in the line of wall or fence in course of erection.

The Wire netting frame (L) may now be placed over said tube or rod (N) and lheu filled with concrete.

If the post is required to represent a rough cast design, the concrete is pressed through said Wire netting frame (L). 'VVhere it is desired to make a plain surfaced post the concrete should not be ressed througlrthemesh of said'frame L), in which case, the circumferential surface of post can be finished Off with compo con1- posed of sand and cement only.

This operation may be carried out with facility and good effect by hand; using a canvas glove in lieu of metal tools.

In order to permit of joining the ends of the ianels with the posts I provide slits as at (fl), Fig. 2, cut in the form of the letter X in either side of frame (11) so that their four corners (R) can be bent outumrdl to provide openings such as (it) of a. size that will allow of the ends of panels carnving the reinforcing tubes or rods and (I?) of the fence rails being inserted therein and securely fastened by means of wire at (T) and (U) to the central tube or rod (N) of fence post, as shown at Fig. 2, and also to allow of said corners being bent back as at (V) in order to assist in making a rein-- forced connection between post and pancl.--..

Like slits having corners turned out wardly to form openings such as (Fl) may also be provided in said wire netting frame (L), to receive the branches as at (W) comprised of cylindrically shaped wire netting frames.

It may be here explained that plain concrete ornamental or rustic designs can be readily constructed as rough east work.

What I claim is.

A structure of the class described comprising a framework of longitudinal rods or the like and stay rods therefor, said frame-- work being made in sections, posts inserted between adjacent sections said posts comprising a central rod and a cylindrical wire netting inclosure therefor, said netting be ing provided with slits for receiving lbe ends of said longitudinal. rods and all c said parts being incased in cement.

In testimony whereof I have l'iGIGHIllU set my hand in presence of two subscribing witnesses.

WILLIAM CHARLES DAVIS. Witnesses:

ALBERT E. G. Swanson, LUoY GREEN. 

